I am currently looking to set up a 7.1 channel system. What i have to work with is a pair of RT1000i, a CS400i center and a pair RT55i. My biggest question is what surrounds would be the best tember match for the older RT series speakers. I have been looking for the old F/X500i or F/X1000i surrounds but havent had any luck. Is there a newer current surround that will match exactly or as exact as possible with the RT series speakers i have. Also i was wandering what would be the best setup with my speakers. I am trying to decide if i should use the RT55i's or the RT1000i's as my rear center channels just throwin that out for opions as i will prob try both and see which sounds the best. mostly im lookin for a good surround speaker.